Highly reliable receiver front-end

Inactive Publication Date: 2014-03-18
PIRELLI & C +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a way to strengthen a secondary radio signal without losing any significant signals.

Problems solved by technology

Such radio signals are therefore subject to degradation in the presence of noise.
The Applicant has observed that the above described receiver front-end has a relatively low reliability due to the fact that HTS filters and consequently the receiver front-end, become non-operative if the cryogenic unit does not work properly, for example due to refrigerator problems.

Method used

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Examples

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first embodiment

[0055]In the present invention, shown in FIGS. 3 and 4, the primary antenna 9 acts as both transmitting and receiving antenna, while the secondary antenna 10 acts only as a receiving antenna.

[0056]In this case, the receiver front-end 6 includes a transmission branch 11 and a primary receiving branch 12 connected in parallel between first and second node 13, 14; the first node 13 being coupled to the primary antenna 9 and the second node 14 being coupled to the signal processing sections 8 of the transceiver station 3. The receiver front-end 6 also include at least a secondary receiving branch 15 inserted between the secondary antenna 10 and the signal processing sections 8 of the transceiver station 3.

[0057]According to the present invention, the primary receiving branch 12 comprises non-superconducting components while the secondary receiving branch 15 comprises superconducting components.

[0058]By the term “component” it is meant, throughout the present description and claim, an ac...

second embodiment

[0080]In the present invention, shown in FIGS. 5, 6, both the primary antenna 9 and the secondary antenna 10 act as transmitting and receiving antennas.

[0081]In this case, the secondary receiving branch 15 of the receiver front-end 6 is connected in parallel to a secondary transmission branch 27. The secondary transmission branch 27 and the secondary receiving branch 15 are inserted between first and second nodes 28, 29; the first node 28 being coupled to the secondary antenna 10 and the second node 29 being coupled to the signal processing sections 8 of the base transceiver station 3. The secondary transmission branch 27 comprises a transmitting filter 30 while the secondary receiving branch 15 comprises a further receiving filter 31 inserted between the cryogenic refrigerator unit 22 and the second node 29.

[0082]The transmitting filter 30 may be a conventional filter or it may be an HTS filter. In this latter case the transmitter filter 30 is disposed within the cryostat 25 of the...

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Abstract

A receiver front-end for use in a transceiver station of a wireless communication network. The transceiver station is associated with an antenna assembly having a primary and at least a secondary antenna. The receiver front-end is adapted for insertion between the antenna assembly and signal processing sections of the transceiver station. The receiver front-end includes a primary and at least a secondary receiving branch, the primary receiving branch being adapted for coupling to the primary antenna and to the signal processing sections of the transceiver station, the secondary receiving branch being adapted for coupling to the secondary antenna and to the signal processing sections. The primary receiving branch has nonsuperconducting components, including at least a non superconducting filter while the secondary receiving branch has at least a superconducting component.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is a national phase application based on PCT / EP2003 / 007187, filed Jul. 4, 2003, the content of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention generally relates to the field of mobile telephony and particularly to a wireless communication network. More particularly, the present invention relates to a highly reliable wireless communication station receiver front-end for use in a wireless communication network, for example a 3rd Generation (3G) wireless communication network.[0004]2. Description of the Related Art[0005]In a wireless communication network, geographic areas are subdivided into a plurality of cells. The traffic in each cell is handled by a transceiver station for transmitting and / or receiving radio signals (voice and / or data) to / from mobile terminals. Such transceiver stations can be equipped with receiver front-ends whose main func...

Claims

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Application Information

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IPC IPC(8): H04B1/036H04B1/18H04B1/38
CPCH04B1/036H04B1/18
InventorMELE, RENATARICCI, FABRIZIOSERRA, STEFANO
OwnerPIRELLI & C